On Thu, 28 Apr 2016, [email protected] wrote: > From: Patrice Chotard <[email protected]> > > STMPE1600 is a 16-bit port expander. > Datasheet is available here : > http://www2.st.com/content/st_com/en/products/interfaces-and-transceivers/ > i-o-expanders-and-level-translators/i-o-expanders/stmpe1600.html > > Signed-off-by: Amelie DELAUNAY <[email protected]> > Signed-off-by: Patrice Chotard <[email protected]> > Acked-by: Linus Walleij <[email protected]> > --- > drivers/mfd/stmpe-i2c.c | 2 ++ > drivers/mfd/stmpe.c | 65 > +++++++++++++++++++++++++++++++++++++++++++---- > drivers/mfd/stmpe.h | 21 +++++++++++++++ > include/linux/mfd/stmpe.h | 1 + > 4 files changed, 84 insertions(+), 5 deletions(-)
If it's good enough for Linus ... Acked-by: Lee Jones <[email protected]> > diff --git a/drivers/mfd/stmpe-i2c.c b/drivers/mfd/stmpe-i2c.c > index c3f4aab..863c39a 100644 > --- a/drivers/mfd/stmpe-i2c.c > +++ b/drivers/mfd/stmpe-i2c.c > @@ -57,6 +57,7 @@ static const struct of_device_id stmpe_of_match[] = { > { .compatible = "st,stmpe610", .data = (void *)STMPE610, }, > { .compatible = "st,stmpe801", .data = (void *)STMPE801, }, > { .compatible = "st,stmpe811", .data = (void *)STMPE811, }, > + { .compatible = "st,stmpe1600", .data = (void *)STMPE1600, }, > { .compatible = "st,stmpe1601", .data = (void *)STMPE1601, }, > { .compatible = "st,stmpe1801", .data = (void *)STMPE1801, }, > { .compatible = "st,stmpe2401", .data = (void *)STMPE2401, }, > @@ -101,6 +102,7 @@ static const struct i2c_device_id stmpe_i2c_id[] = { > { "stmpe610", STMPE610 }, > { "stmpe801", STMPE801 }, > { "stmpe811", STMPE811 }, > + { "stmpe1600", STMPE1600 }, > { "stmpe1601", STMPE1601 }, > { "stmpe1801", STMPE1801 }, > { "stmpe2401", STMPE2401 }, > diff --git a/drivers/mfd/stmpe.c b/drivers/mfd/stmpe.c > index a060809..3a65331 100644 > --- a/drivers/mfd/stmpe.c > +++ b/drivers/mfd/stmpe.c > @@ -532,6 +532,59 @@ static struct stmpe_variant_info stmpe610 = { > }; > > /* > + * STMPE1600 > + * Compared to all others STMPE variant, LSB and MSB regs are located in this > + * order : LSB addr > + * MSB addr + 1 > + * As there is only 2 * 8bits registers for GPMR/GPSR/IEGPIOPR, CSB index is > MSB registers > + */ > + > +static const u8 stmpe1600_regs[] = { > + [STMPE_IDX_CHIP_ID] = STMPE1600_REG_CHIP_ID, > + [STMPE_IDX_SYS_CTRL] = STMPE1600_REG_SYS_CTRL, > + [STMPE_IDX_ICR_LSB] = STMPE1600_REG_SYS_CTRL, > + [STMPE_IDX_GPMR_LSB] = STMPE1600_REG_GPMR_LSB, > + [STMPE_IDX_GPMR_CSB] = STMPE1600_REG_GPMR_MSB, > + [STMPE_IDX_GPSR_LSB] = STMPE1600_REG_GPSR_LSB, > + [STMPE_IDX_GPSR_CSB] = STMPE1600_REG_GPSR_MSB, > + [STMPE_IDX_GPDR_LSB] = STMPE1600_REG_GPDR_LSB, > + [STMPE_IDX_GPDR_CSB] = STMPE1600_REG_GPDR_MSB, > + [STMPE_IDX_IEGPIOR_LSB] = STMPE1600_REG_IEGPIOR_LSB, > + [STMPE_IDX_IEGPIOR_CSB] = STMPE1600_REG_IEGPIOR_MSB, > + [STMPE_IDX_ISGPIOR_LSB] = STMPE1600_REG_ISGPIOR_LSB, > +}; > + > +static struct stmpe_variant_block stmpe1600_blocks[] = { > + { > + .cell = &stmpe_gpio_cell, > + .irq = 0, > + .block = STMPE_BLOCK_GPIO, > + }, > +}; > + > +static int stmpe1600_enable(struct stmpe *stmpe, unsigned int blocks, > + bool enable) > +{ > + if (blocks & STMPE_BLOCK_GPIO) > + return 0; > + else > + return -EINVAL; > +} > + > +static struct stmpe_variant_info stmpe1600 = { > + .name = "stmpe1600", > + .id_val = STMPE1600_ID, > + .id_mask = 0xffff, > + .num_gpios = 16, > + .af_bits = 0, > + .regs = stmpe1600_regs, > + .blocks = stmpe1600_blocks, > + .num_blocks = ARRAY_SIZE(stmpe1600_blocks), > + .num_irqs = STMPE1600_NR_INTERNAL_IRQS, > + .enable = stmpe1600_enable, > +}; > + > +/* > * STMPE1601 > */ > > @@ -928,6 +981,7 @@ static struct stmpe_variant_info > *stmpe_variant_info[STMPE_NBR_PARTS] = { > [STMPE610] = &stmpe610, > [STMPE801] = &stmpe801, > [STMPE811] = &stmpe811, > + [STMPE1600] = &stmpe1600, > [STMPE1601] = &stmpe1601, > [STMPE1801] = &stmpe1801, > [STMPE2401] = &stmpe2401, > @@ -954,7 +1008,8 @@ static irqreturn_t stmpe_irq(int irq, void *data) > int ret; > int i; > > - if (variant->id_val == STMPE801_ID) { > + if (variant->id_val == STMPE801_ID || > + variant->id_val == STMPE1600_ID) { > int base = irq_create_mapping(stmpe->domain, 0); > > handle_nested_irq(base); > @@ -1128,13 +1183,13 @@ static int stmpe_chip_init(struct stmpe *stmpe) > return ret; > > if (stmpe->irq >= 0) { > - if (id == STMPE801_ID) > + if (id == STMPE801_ID || id == STMPE1600_ID) > icr = STMPE_SYS_CTRL_INT_EN; > else > icr = STMPE_ICR_LSB_GIM; > > - /* STMPE801 doesn't support Edge interrupts */ > - if (id != STMPE801_ID) { > + /* STMPE801 and STMPE1600 don't support Edge interrupts */ > + if (id != STMPE801_ID && id != STMPE1600_ID) { > if (irq_trigger == IRQF_TRIGGER_FALLING || > irq_trigger == IRQF_TRIGGER_RISING) > icr |= STMPE_ICR_LSB_EDGE; > @@ -1142,7 +1197,7 @@ static int stmpe_chip_init(struct stmpe *stmpe) > > if (irq_trigger == IRQF_TRIGGER_RISING || > irq_trigger == IRQF_TRIGGER_HIGH) { > - if (id == STMPE801_ID) > + if (id == STMPE801_ID || id == STMPE1600_ID) > icr |= STMPE_SYS_CTRL_INT_HI; > else > icr |= STMPE_ICR_LSB_HIGH; > diff --git a/drivers/mfd/stmpe.h b/drivers/mfd/stmpe.h > index f127342..f7efdd8 100644 > --- a/drivers/mfd/stmpe.h > +++ b/drivers/mfd/stmpe.h > @@ -164,6 +164,27 @@ int stmpe_remove(struct stmpe *stmpe); > #define STMPE811_SYS_CTRL2_TS_OFF (1 << 3) > > /* > + * STMPE1600 > + */ > +#define STMPE1600_ID 0x0016 > +#define STMPE1600_NR_INTERNAL_IRQS 16 > + > +#define STMPE1600_REG_CHIP_ID 0x00 > +#define STMPE1600_REG_SYS_CTRL 0x03 > +#define STMPE1600_REG_IEGPIOR_LSB 0x08 > +#define STMPE1600_REG_IEGPIOR_MSB 0x09 > +#define STMPE1600_REG_ISGPIOR_LSB 0x0A > +#define STMPE1600_REG_ISGPIOR_MSB 0x0B > +#define STMPE1600_REG_GPMR_LSB 0x10 > +#define STMPE1600_REG_GPMR_MSB 0x11 > +#define STMPE1600_REG_GPSR_LSB 0x12 > +#define STMPE1600_REG_GPSR_MSB 0x13 > +#define STMPE1600_REG_GPDR_LSB 0x14 > +#define STMPE1600_REG_GPDR_MSB 0x15 > +#define STMPE1600_REG_GPPIR_LSB 0x16 > +#define STMPE1600_REG_GPPIR_MSB 0x17 > + > +/* > * STMPE1601 > */ > > diff --git a/include/linux/mfd/stmpe.h b/include/linux/mfd/stmpe.h > index 3dced4a..0170bd6 100644 > --- a/include/linux/mfd/stmpe.h > +++ b/include/linux/mfd/stmpe.h > @@ -26,6 +26,7 @@ enum stmpe_partnum { > STMPE610, > STMPE801, > STMPE811, > + STMPE1600, > STMPE1601, > STMPE1801, > STMPE2401, -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog
